Fabricated bobbin releaser for weft replenishing looms



Oct. 1l, 1.949o w, A 'BLANCHARD 2,484,399

FABRICATED BOBBIN RELEASER Fon wEFT REPLENISHING LooMs 'Filed Dec. 14, 1948 2 Sheets-Sheet 1 lill-ill'lllllwllll lNVENTOR WlLLIAM A. BLANCHARD MM/@M ATTORNEY 'oct l1, l949- w. A. BLANCHARD 2,484,399

- FABBICATED BOBBIN RELEASER FOR wEFT REPLENISHING LOOMS Filed Dec. 14, 1948 2 Sheets-Sheet 2 l Il Ii\ Il l ll Il J I Il Il Il I Il\\ll 1l 05 c\ j 6V] ss FIGpIO INVENTOR WILLJAM A. BLANCHARD ATTORNEY Patented Oct. 11, 1949 i UNITED STATES PATENT OFFICE FABRICATED BOBBIN RELEASER FOR WEFT REPLENISHING LOOMS William A. Blanchard, Millbury, Mass., assgnor to Crompton & Knowles Loom Works, Worcester, Mass., a corporation `of Massachusetts Application December 14, 1948, Serial No. 65,243

16 Claims. (Cl. 139-232) This invention relates to improvements in Fig. 5 is a perspective view showing a relatively bobbin releasers of the type more generally emshort type of releaser, ployed on multicolor weft replenishing looms and Fig. 6 is a bracketed view showing at the left it is the general object of the invention to proa side or end elevation and at the right a front vide a releaser of simple form which can be made 5 elevation of one of the shorter releaser forming cheaply and eiiiciently. parts or elements,

Multicolor weft replenishing mechanisms or- Fig. 7 is a view similar to Fig. 6, but showing dinarily employ a plurality of stacks of bobbins the other part or element to be combined with each having a bobbin delivering cradle at the the part shown in Fig. 6, lower end thereof. These cradles are controlled `10 Fig. 8 is a view similar to Fig. 6, but showing a by releasers which are normally at rest but which part or element for a longer releaser, upon call for replenishment have a vertical re- Fig. 9 is a view similar to Fig. 6, but showing ciprocating movement the eiect of which is to an element or part to be combined with the part roll the cradle in such manner that the lowest shown in Fig. 8, bobbin of the associated stack is delivered from l5 Fig. 10 is a bracketed view showing at the left the latter and moved to a common transfer pothe blank for the dog or pawl for the upper end sition. In the past these bobbin releasers have of the releaser and showing at the right a front been expensive to make and have been of dielevation of the dog, and

verse forms requiring a number of different set- Fig. l1 is an enlarged detail vertical section on ting-up operations for their manufacture. y line II--I I, Fig. 1.

It is an important object of the present inven- Referring more particularly to Fig. 1, the multion to provide a bobbin releaser made essentially ti-stack magazine designated generally at M is of two parts which can be made as stampings and supported by a foot I I secured in any approved then assembled and interconnected in such manmanner tothe loom frame I2. The magazine in ner as to form a complete releaser. the present instance is provided with four stacks It is another object of the invention to provide of bobbins which reading from the front or right one of the tWo parts which form the releaser with of Fig. 1 rearwardly are designated at I3, I4, I5 a recess to receive a portion of the other part, and I 6. At the bottom of each stack is located a thereby causing correct registry of the two parts. rockable cradle part of which is designated at It iS a Still further Object 0f the invention t0 30 I1. These cradles are ordinarily emptybut upon provide a Simple improved form of Operating call for a replenshing operation the cradle corpawl or dog for the upper end of the releaser. responding to the weft to be replenished is rst In order to simplify the manufacture of the rocked in one direction to receive a bobbin and releasers needed for a complete bobbin maga-` then rocked in the opposite direction to deliver zine it is a further object of the invention to prcthe bobbin so that it may move to a common vide a set of releaser forming elements which transfer position indicated at I8. can be assembled in various ways to form a full The magazine M includes in its construction Complement 0f feleaselsa so-called color slide 20 including a rod 2l hori- Wth these and other Objects in View Which zontally slidable on the magazine and connected will appear as the description proceeds, the inas at 22 to the upper arm 23 of a selector lever vention resides in the combination and arrange- 24 pvoted at 25 to some part of the magazine,

ment of parts hereinafter described and set forth. By means of a rod 26 which moves in timed re In the accompanying drawings wherein a conlation w1th the shlfting shuttle boxes at the op- Vement embodlment of the mventlon 1S Se, posite end of the loom the color slide is moved forth,

horlzontally to any one of four positions. The

Fig. 1 shows a side elevation of a multicolor weft replenishng m as viewed from the cem color sllde has front and back l1ft1ng and deter of the loom having the improved releasers appressing ngers 30 and 3 I. respectively, which are plied thereto, so related that they register with the stacks one Fig. 2 is a top plan view of one of the releasers 5o at a time, depending UDCH their longitudinal DO- looking in the direction of arrow 2, l, sition. When a weft replenishing operation is Fig. 3 is a vertical section on line of Fig. 2, initiated a rod 32 is lowered for the purpose of Fig. 4 isa perspective view showing a relatively lifting the fingers, and at a later time in the loom long type of releaser employed in the mechanism cycle rod 32 depresses the' lingers. It is by this' set forth in Fig. 1, g5?, oscillation of the color slide that the cradle corresponding to the depleted shuttle is rocked flrst in one direction and then the other.

Extending above the color slide is a rocker shaft 35 the forward end of which is connected to a depending rod 36 operatively connected to the latch 31 of a transferrer arm 38. Under normal conditions the rocker shaft 35 is at rest, but when the fingers 30 and 3| have a downward movement incident to a replenishing operation shaft 35 is rocked to lift the latch 31 into transfer position.

The matter thus far described is of well known construction and of itself forms no part of the present invention and may be as set forth for instance in Patent No. 1,030,748.

In carrying the present invention into effect improved bobbin releasers are provided to rock the cradles and the shaft 35 when the fingers 30 and 3| operate as already described. These releasers, one for each stack and cradle, are designated in Fig. 1 at 40, 4|, l42 and 43, and correspond respectively to bobbin stacks |3-|6. As shown in Fig. 1, the front and back releasers 4|] and 43, respectively, are relatively long. while the intermediate cradles 4| and 42 are shorter, and it will be also noted that the cradle operating wings 45 andY 48 of the long releasers are of opposite hand and that the wings 46 and 41 of the shorter releasers are also of opposite hand. Thefour releasers are assembled from the four releaser forming parts or elements shown in Figs. 6 to 9.

Referring particularly to Figs. 6 and 7, there are provided two short elements 59 and 5| for making the short releasers 4| and 42. These elements are both fiat and may be made of sheet metal, element 50having a lateral arm 52 at the upper end thereof extending Vto the right, see Fig. 6, and having therebelow two operating lingers 53 and 54 extending to the left: As shown at the right hand part of Fig. 6'the element 50 is provided with an integral cradle operating wing member designated herein at 55 which is in the plane of the member 50. This wing member has an operating slot 56 to receive part of a bobbin cradle. Referring to Fig. 7, it will be seen that element is also made of flat sheet metal and has a right hand lateral ami 51 and two left hand ngers 58 and 59. The lower end of element 5| differs from the lower end of element 50 in that it has no wing member but does have a notch or recess 60.

These two elements 59 and 5| can be used for making both of the short releasers 4| and 42. When it is desired for instance to make the short releaser I4| the element 50 will be located to the right of the element 5| as shown at the left of Fig. 7 and the wingmember 55 bent to the left along line a, Fig. 6, part of the wing member entering the notch 69. The elements 50 and 5| are then secured together, as by brazing or welding. The wing member will then form the wing 46 for releaser 4|. If, on the other hand, it is desired to form the releaser 42, element 50 is placed to the left of element 5| and the wing member 55 bent over the lower end of element '5| to the right. These two operations will provide the releasers 4| and 42 with their cradle operating wings disposed in opposite directions. When the short releasers are assembled as described and placed in the magazine the upper lifting fingers 53 and 58 will lie side by side in position to cooperate one at a time with the lifter angers so and 3|. This win also be true for the lower fingers 54 and 59.

Fig. 8 shows an element 62 for forming part of a long releaser, the upper part of this element being similar to element 59, but the intermediate part thereof being provided with notches 63 and 64. The lower part of element 62 is provided with a cradle operating wing member 65 similar to wing member 55 and having a slot 66 similar to slot 56.

The other long element 61 shown in Fig. 9 has its upper end formed as are the upper ends of the other elements, but the lifting fingers, instead of being relatively short as in Figs. 6 and 7, are relatively long because of the fact that these fingers must be offset from their respective releasers in order to cooperate properly with the lifting fingers 30 and 3|. The upper and lower ngers 68 and 69, respectively, of element 61 are adapted to enter the notches 63 and 64, respectively, and the lower end of element 61 is notched as at 16 in the same way as is the lower end of element 5|.

When forming the front long releaser 49 element 62 will be located at the left of element l61 as the latter appear at the right hand part of Fig. 9 and wing member 65 will then be bentto the right along line a. through notch 16. The lifter fingers 63 and 69 will then be bent to the left along lines b, Fig. 9, to occupy notches 53 and 64, respectively. At a subsequent operation the fingers 68 and 69 are given a second bend along line c to provide finger ends 12 and 13. When releaser 43 is formed element S2 will be at the right of element 61 and the reverse operations are performed with respect to the wing member 65 and fingers 68 and 69.

After the parts have been assembled and secured to each other as described the next step in the manufacture of the releasers, will be to drill spring receiving holes 16, see Fig.l 3, and drill pin receiving holes 11, see Fig. 2. j

Each releaser must be provided with a pawl or dog for operation of the rocker shaft 35. These dogs are all alike and are made as shown in Fig. 10. A flat bank is formed as indicated at the left of Fig. 10 and has an intermediate bridge 8| from which extend right and left wings 82 and 83, respectively, each punched with a hole 84 and each provided with a spring retaining nger 85.

When forming the dog the ends of the wings are bent at right angles to the blank 86 to the same side thereof along line-s d, and fingers are then bent up along lines e to be parallel to the blank. Wings 82 and 83 are then bent at right angles to bridge 8| to the same side thereof along lines f and y. respectively. The dog will then be in the form shown at the right of Fig. 10 and ready for application to a, releaser. The holes 84 will be aligned and receive the pivot pin 88, and a coil spring 81 will have its upper end inserted in a' hole 16 and its lower end fitted over ngers 35.

The normal effect of spring 81 is to turn the dog counter-clockwise from the position of Fig. l1, but when the releaser is down in its normal position it is held there by a spring plunger 99 usual in magazines as set forth, and a part 9| of the magazine frame engages the dog to hold it as shown in Fig. When the releaser is raised spring 81 moves the bridge 8| over a shelf 92 secured to rocker shaft 35, and when the releaser is subsequently lowered the dog engages the shelf to rock the shaft counter-clockwise, Fig. ll. At a later time the shaft is returned toits normal position by well known mechanism not set forth herein. The various elements 50, 5|, 62 andl" ma;7 if desired be formed with wedges 95 similarl to wedges shown l in- Chevrette Patent No. 1,510,765. z

From the foregoing it will be seen that the invention sets forth a bobbin releaser made of two.

partsI or elements secured to each other with one partl having a bent wing which enters. a notch4 in the. other port to position the two parts. It will also be seen that two different kinds of releasers can: be made.Y from the. same pair of releaser forming elements, depending upon the direction in which the cradle operating wing. is bent. Furthermore, the releaser is provided withl a simple form of dog pivoted at the upper end thereof and made of a stamping which includes a bridge for operating the shelf 92 and also fingers 85 for reeeiving one end of spring 81. In the long releasersthe lugs or fingers which. cooperate with the color slide extent from one releaser forming element through notches in the other element to posi-tion the two parts.

Having thus described the invention it will be seen that changes and modifications of the foregoing speciic disclosure may be made without departing from the spi-rit and scope of the invention.

What is claimed as new is:

l.` In a bobbin releaser for a weft replenishing loom having a bobbin delivery cradle, said releaser comprising two elongated sheet metal elefments arranged sideby side andv secured together, onel of said elements having a bobbin cradle operw ating wing bent laterally therefrom. i

2. In a bobbin releaser for a weft replenishing loom having a bobbindeliverycradle, said releaser comprising two elongated sheet metal elements arranged side by side andf secured together, one of said elements having a bobbin cradle operating Wing bent laterally therefrom and extending across part of the other element.

3. In a bobbin releaser for a weft replenishing loom having a bobbin delivery cradle, said releaser comprising two elongated sheet metal elements arranged side by side and secured together, one of said elements having a bobbin cradle operating wing bent laterally therefrom and the other element having a positioning notch therein through which the wing extends.

4. A pair of elements for making either right or left hand bobbin cradle operating releasers for a weft replenishing loom, said elements being made of elongated sheet metal, one of said elements having a cradle operating wing member formed in the plane thereof, said elements when arranged side by side and the wing member bent laterally in one direction relatively to the members forming a right hand releaser, and the wing member when bent laterally in the opposite direction relatively to the members forming a left hand releaser.

5. A pair of elements for making either right or left hand bobbin cradle operating releasers for a weft replenishing loom, said elements being made of elongated sheet metal, one of said elements having a cradle operating wing member formed in the plane thereofy said one element when arranged on one side of the other element with said wing member bent laterally of said elements in one direction forming a right hand releaser, and said one element when arranged on the other side of the other element with the Wing member bent laterally of said elements in the opposite direction forming a left hand releaser.

6. A pair of elements for making either right or left hand bobbin cradle operating releasers for a weft replenishing loom, said elements being made of elongated sheet metal, one of said elements having a-l cradle operating wing member form-ed in the plane thereof, the other element having a notch formed therein, said one element when. arranged on one side of the other element with said wingV member bent in one direction across the. other element and through said notch forming a right` hand releaser, and said one elementvwhen arranged on the opposite side of said other element with the wing member bent in the opposite'` direction across said other element and through-said notch forming a left hand releaser.

7. In a bobbin releaser for a weft replenishing loom having a color slide, said releaser comprising ltwo elongatedsheet metal elements arranged side by side and secured together, one of said elements having a pair of spaced fingers for the color slide bent laterally therefrom.

8. In a bobbin releaser for a weft replenishing loom having a color slide, said releaser comprising two elongated sheet metal elements arranged side"` by side and secured together, one of said elements having a pair of spaced fingers for the color slide bent laterally therefrom and across parts of the other element.

9. In a bobbin releaser for a weft replenishing loom having a color slide, said releaser comprising two elongated sheet metal elements arranged side by side and Secured together, one of said elements having spaced positioning notches on one edge thereof and the-other element having fingers bent laterally therefrom and extending through said notches for cooperation with said color slide.

l0. Ina bobbin releaser for a weft replenishing loom having a bobbin `delivery cradle and a color slides,aid releaser comprising two elongated elements arranged side by side and secured together, one of said elements having a wing member and two spaced positioning notches in one edge thereof, and the other element having fingers for cooperation with the color slide bent laterally therefrom and extending through said notches and having also a positioning notch in one end thereof, said Wing member being bent laterally from said one element and extending through said last named positioning notch for cooperation with said cradle.

1l. In a bobbin releaser for a weft replenishing loom having a bobbin delivery cradle and a color slide, said releaser comprising two elongated elements arranged side by side and secured together, one of said elements having a wing member on one edge thereof and two spaced positioning notches in said edge, and fingers for the color slide extending laterally from one edge of the other element and through said notches, said other element having a notch in said one edge thereof through which the wing member extends for cooperation with the cradle.

12. A pair of elements for making either right or left hand bobbin cradle operating releasers for a weft replenishing loom having a color slide, said elements being made of at elongated sheet metal, one of said elements having fingers for the color slide formed in the plane thereof, said elements when arranged sidegby side with said one element on one side of the other element and the fingers bent laterally in one direction forming a right hand releaser and said elements when arranged side by side with said one element on the other side of said other element and the fingers bent laterally in the opposite direction forming a left hand releaser.

13. A pair of elements for making either right or left hand bobbin cradle operating releasers for a weft replenishing loom having a color slide,

said elements being made of flat elongated sheet metal, one of said elements having lingers for the color slide formed in the plane thereof, said elements when arranged side by side with said one element on one side of 'the other element and the ngers bent laterally in one direction across said other element forming a right hand releaser, and said elementsl when arranged side by side With said one element on the other side of said other element and the ngers bent laterally in the opposite direction across said other element forming a left hand releaser.

g 14. A pair of elements for making either right or left hand bobbin cradle operating releasers for a weft replenishing loom having a color slide, said 'elements being made of flat elongated sheet metal, one of said elements having spaced lingers Yfor the color slide formed in the plane thereof and the other element having spaced positioning notches to receive said iingers, said elements when arranged side by side with said one element on one side of the other element and the fingers bent laterally in one direction through said notches forming a right hand releaser, and said one element when arranged on the other side of said'other element and the lingers bent in the opposite direction through said notches forming a left hand releaser.

V115. A pair 'of at elements for making either right or left hand bobbin cradle operating releasers for a weft replenishing loom having a bobbn cradle and a color slide, one of said elements having fingers for the color slide formed in the plane thereof and the other element having a Wing member in the plane thereof for said i 8 cradle, said elements'when arranged side by side with said one element on one side of the other element and the lingers and wing member bent laterally in opposite directions forming either a right hand or a left hand releaser, depending upon the direction of bending of said fingers and Wing member relatively to their corresponding elements.

16. A pair of at elements for making either right or left hand bobbin cradle operating re-l leasers for a weftreplenishing loom having a bobbin cradle and a color slide, one of said elements having spaced lingers in the plane thereof for the color slide and a notch therein below said ngers, the other element having spaced notches for the lingers and a Wing member for said cradle in the plane thereof and below said notches, said elements when arranged side by side with said one element on one side of the other element and the fingers bent laterally in one direction through the notches in the other element and the Wing member bent laterally in the opposite direction through the notch in said one element forming a right hand releaser, and said elements wheny arranged side by side with said one element on the other side of said other element and the lingers bent laterally in a direction opposite to said one direction through said notches of said other element and the wing member bent laterally in said one direction through the notch of said one element forming a left hand releaser.

WILLIAM A. BLANCHARD.

No references cited. 

